Curbstone and sidewalk conduit for electric wires



(NoModeL) E. CLARK. GU STONE-AND SI'DEWAL' K CONDUIT FOR ELECTRIC WIRES.

No. 2 ,095. Patented May 2 883 WITNESSES IgZE/TpI/TQE: I I v m BYHATTORNEYS.

N. PEYERS. Plwln Lilhogrnphar. Washmmnn. n. c.

UNITED STATES P TENT OFFICE.

EDWARD CLARK, OF JERSEY CITY, NEW JERSEY.

CURBSTONE AND SlD EWALK CONDUIT FOR ELECTRIC WIRES.

Y SPECIFICATION forming part of Letters Patent No. 278,095, dated May22, 1883.

Application filed February 28. 1883. (X0 model.)

To all whom it may concern Be it known that I, EDWARD CLARK, of J er seyCity, in the county of Hudson'and State of New Jersey, have invented anew and useful Improvement in Ourbstone and Sidewalk (londuits forTelegraph, Electric-Light, and Telephone Wires, of which the followingis a full, clear, and exact description.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a sectional side elevation of my improvement. Fig. 2 is aplan view of the same, parts being broken away. Fig. 3 is across-section of the same, taken through-the line 00 00, Fig. 2.

The object ofthis invention is to provide convenient means for layingtelegraph, electric-light, and telephone wires in streets.

A represents an open-topped iron box, which is made rectangular in form,and the outer side of which is made sufficiently strong and heavy toadaptit to serve asacurb. The inner sides of the upper edges of thesides of the box A are rabbeted, or have shoulders B formed upon them toreceive and support the coverU, which is made in sections,so thatanypartof thesaid cover can be turned back or removed to give access tothe interior of the said box A. If desired, the sections of the cover 0can be hinged at their inner edges for convenience in opening andclosing any desired part of the box A. In case the sidewalk-stones aretoo thick to be readily cut away, the box A' is placed beneath the saidst0nes,and doors are formed in the outer side of the said box to giveaccess to the interior.

The box A is laid along the edge of the roadway, space being obtained bycutting away the outer part of the sidewalk, so that the outer side ofthe said box will serve as a curb to the street, and the cover of thebox will form the outer part of the sidewalk.

The cover 0 is supported and the box A strengthened by cross-partitionsD, placed atsuitable distances apart, and which are perforated withnumerous holes to receive the,

electric wires E, as indicated in the drawings. Some of the perforationsin the partitions 1) At street-crossings the box A is made with downwardoffsets F, which are made inclined, as shown in Fig. 1, so that thewires Eneed not be bent at sharp angles, and there will be no danger ofbreaking the insulatingcovering of the said wires. The offsets F areprovided with partitions D D at the inner andouter ends. The innerpartitions, D, are set at an inclination, as shown in Fig. 1, and the,outer partitions, D may be inclined, as shown in the right-hand part ofFig. 1, or vertical, as shown at the left hand part of Fig. 1. The upperparts of the outer partitions, D are vertical in either case, and form apart of the curb of thecross-street, as shown in Figs. 1 and 2.

Upon the outer sides of the outer partitions, D at the offsets, areformed shoulders G at a distance from their upper edges equal to theheight of the curb, to form seats for the part G of the cover thatextends across the crossstreet, as shown in Fig.1.

W The box A is supported against settling by supports A, set in theground, and which are made of sufficient length to reach a solidfoundation, and have base-blocks or feet I attached to their lower ends.

In case more electric wires are to be used than can be placed iigthe boxA, the ground beneath the said box is excavated, and the space orchamber thus formed is inclosed by attaching boards J or other siding tothe supports H. In this case supports for the wires are provided byattaching perforated partitions to the supports H.

In case the box A passes over vault-s lighted sections 0 of the coverthat forms a part of 10:)

the roadway are coarsely roughened to pre- 2. In a conduit for electricwires, the comvent horses from slipping upon them. binetion, with thebox-supports II, of the sid- Having thus described myinvention, what Iiug' J, substantially as herein shown and deeluiin as new, and desire tosecure by Letters scribed, to form a chamber to receive addil 5 5Patent, is tionul wires, as set forth.

1. In a conduit for electric wires, the outer partitions, D at theeffects F, made, substan- EDWARD CLARK. tiully as herein shown anddescribed, with shoulders G, to support the ends of the cover-Witnesses: IO sections 0, that form a part of the roadway, JAMES '1.GRAHAM,

as set forth. (J. SEDGWIOK.

